<template>
    <van-cell class="comment-item">
        <van-image 
            slot="icon" 
            class="avatar" 
            round 
            fit="cover" 
            :src="comment.aut_photo" 
        />
        <div slot="title" class="title-wrap">
            <div class="user-name">{{ comment.aut_name }}</div>
            <van-button 
                class="like-btn" 
                :class="{
                    liked: comment.is_liking
                }"
                :icon="comment.is_liking ? 'good-job' : 'good-job-o'"
                :loading="commentLoading"
                @click="onCommentLike"
            >{{ comment.like_count || '赞' }}</van-button>
        </div>

        <div slot="label">
            <p class="comment-content">{{ comment.content }}</p>
            <div class="bottom-info">
                <span class="comment-pubdate">{{ comment.pubdate | relativeTime }}</span>
                <van-button 
                    class="reply-btn" 
                    round
                    @click="$emit('reply-click',comment)"
                >回复 {{ comment.reply_count }}</van-button>
            </div>
        </div>
    </van-cell>
</template>

<script>
import { addCommentLike, deleteCommentLike } from '@/api/comment'

export default {
    name: 'CommentItem',
    props: {
        comment: {
            type: Object,
            required:true
        },
    },
    data() {
        return {
            commentLoading: false  // 评论点赞的状态
        }
    },
    methods: {
        async onCommentLike() {
            this.commentLoading = true
            try {
                if (this.comment.is_liking) {
                    // 已点赞，取消点赞
                    await deleteCommentLike(this.comment.com_id)
                    // 为了更新视图
                    // this.comment.like_count--
                } else {
                    // 未点赞，添加点赞
                    await addCommentLike(this.comment.com_id)
                    // this.comment.like_count++
                }
                // this.comment.is_liking = !this.comment.is_liking 
                
                
            } catch (err) {
                this.$toast('操作失败，请重试')
            }
            this.commentLoading = false
        }
    }
}
</script>

<style scoped lang="less">
.comment-item {
    .avatar {
        width: 72px;
        height: 72px;
        margin-right: 25px;
    }

    .title-wrap {
        display: flex;
        justify-content: space-between;
        align-items: center;

        .user-name {
            color: #406599;
            font-size: 26px;
        }
    }

    .comment-content {
        font-size: 32px;
        color: #222222;
        word-break: break-all;
        text-align: justify;
    }

    .comment-pubdate {
        font-size: 19px;
        color: #222;
        margin-right: 25px;
    }

    .bottom-info {
        display: flex;
        align-items: center;
    }

    .reply-btn {
        // width: 135px;
        height: 48px;
        line-height: 48px;
        font-size: 21px;
        color: #222;
    }

    .like-btn {
        height: 30px;
        padding: 0;
        border: none;
        font-size: 19px;
        line-height: 30px;
        margin-right: 7px;

        .van-icon {
            font-size: 30px;
        }

        &.liked{
            color:#e5645f
        }
    }
}
</style>
    